Umar Danbatta, gave the warning at the weekend in Abuja, insisting that operators must to do everything possible to improve service delivery to the consumers on their various networks.
Umar Danbatta, nyere ịdọ aka ná ntị ahụ na ngwụsị izu na Abuja, na-ekwusi ike na ndị na-arụ ọrụ ga-eme ihe niile kwere omume iji kwalite nnyefe ọrụ maka ndị na-azụ ahịa na netwọk ha dị iche iche.